New
#1
Haunted by opaque window on new PC
Other than Office I've installed next to nothing on this extremely new PC, but at random times ALT+TAB will display one icon more than there are visibly open programs. Further, if I choose that icon from the switcher, a small (maybe 300px) square "window" is activated, but it's completely featureless & opaque. It closes with ALT+F4 like anything else, but that's the only response I can get from it -- right-clicking inside it gives no response. The screenshot attached shows the icon displayed in the task switcher. Can anyone identify it? Virus scan comes up clean.